What kind of bite?

The big bite is on my daughters leg and the smaller one is my arm. I’m thinking a bug is in my bedroom because we been sitting in here today. I don’t think it looks like bed bugs (I’ve seen and experienced it years ago at a family member) no signs of bed bugs or their blood I checked everywhere and we never itch at night or anything. Not sure if mosquito looks like this because I thought they usually look light in the middle? Is it a spider?